/**
 *
 * @class string
 * @memberof v2
 * @extends v2.ll.string
 * @extends v2.base
 */
function string() {

}

string.prototype = {
    /**
     *
     * @public
     * @function copy
     * @memberof v2.string
     * @return {v2.string}
     */
    copy: function () {},
};